I can speak to Bara / Chibattery. Flawless operation for me.
Bought a 10S4P 25r (would have gone with the 30Q now looking back but I didn’t put much thought into battery research just getting into it and ordered it straight away and didn’t think twice). The 25r sags a bit at full load. At 60A on my 4P, which is about 15A per cell, they drop maybe 2-3.5v, 4v max, which for me is totally acceptable… but being rated for 20A… sure they can push that just fine, but they end up sagging 5-7v on average at 20A per cell load, max sag I have seen at their full amp load has been almost 9v, which is for me not-something-I-will-run-with… so for that reason only i’d have gone 30Q if I could turn back time.
My bad (for my build) choice in 25r doesn’t speak to the quality of Bara’s packs though(!!!)- only my lack of research in fitting the correct cell to my intended setup.
Bara’s work is great, he communicated whenever I asked questions during the build stage, met the 3 wk delivery time, battery came all sealed up nice with BMS integrated into the pack, anti-spark on-off switch that functions great, charge port wired up, and LCD capacity display all ready to go.
All I had to do was mount the charge port, LCD display, and on-off switch on the outside of my enclosure, and bolt the enclosure down. Easy as Pie.
I’ve seen batteries with BMS/etc for cheaper, I think, but I am very happy with my purchase and had a great experience ordering from chibattery / @barajabali